commit 6f013631a27a726ae45e27b209fa769d96d5f069
author John L. Villalovos <john.l.villalovos@intel.com> Tue Feb 09 13:30:58 2016 -0800
committer John L. Villalovos <john.l.villalovos@intel.com> Tue Feb 09 13:32:24 2016 -0800
tree 41af3c73315a62207bbaddb384804fc74324e2fc
parent f1cecf52c069c83e2cba368212b0a7ffc5de7f05

Handle case where FUNCNAME[0] is undefined

If FUNCNAME[0] is undefined and 'set -u' has been used it will cause the
devstack run to fail.

Handle undefined values in PS4.

Closes-Bug: #1543749
Change-Id: I06a013a5e7683e3a3461ff06361d867f61d48e6a

stackrc

diff --git a/stackrc b/stackrc
index 887d4b3..8638a90 100644
--- a/stackrc
+++ b/stackrc
@@ -15,7 +15,7 @@
 export LC_ALL
 
 # Make tracing more educational
-export PS4='+ ${BASH_SOURCE}:${FUNCNAME[0]}:L${LINENO}:   '
+export PS4='+ ${BASH_SOURCE:-}:${FUNCNAME[0]:-}:L${LINENO:-}:   '
 
 # Find the other rc files
 RC_DIR=$(cd $(dirname "${BASH_SOURCE:-$0}") && pwd)